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Method and device for transmitting mbms control information in multi-carrier aggregation system

A multi-carrier aggregation and control information technology, which is applied in the direction of transmission path separation device, transmission path sub-channel allocation, transmission system, etc., can solve the problems of increased duration, increased uplink random access conflicts, and unschedulable networks. Achieve the effects of improving system performance, reducing duration, and reducing the probability of uplink random access conflicts

Active Publication Date: 2017-12-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For UEs in the RRC idle state, since the network side cannot know which CC the UE is in, the network cannot schedule such UEs to a certain CC. Whether the MBMS is the MBMS that it is interested in, and when the UE receives the notification and gathers in the CC that carries the MBMS, and finds that the MBMS that is currently being transmitted in the CC that carries the MBMS is not the MBMS that it is interested in, the UE prematurely occurs. In this way, the duration of the potential impact on the uplink random access in the MBMS-carrying CC increases, that is, the probability of uplink random access collision is increased
In addition, in the prior art, for UEs working or residing in CC 2 or CC 3, they cannot accurately and timely know that the MBMS they are interested in has started to be transmitted in CC 1. In this way, UEs cannot work in time or Residing in CC 1, start receiving interested MBMS

Method used

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  • Method and device for transmitting mbms control information in multi-carrier aggregation system
  • Method and device for transmitting mbms control information in multi-carrier aggregation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The application scenario of this embodiment is: in a multi-carrier aggregation system, there are 3 CCs, CC 1, CC 2, and CC 3, and only CC 1 is selected to transmit MBMS containing service data and service control information, CC 2 and CC 3 MBMS service data is not transmitted in CC 3; wherein, the service control information includes: MCCH information and MSI.

[0061] Using the method of the present invention, the network side transmits MBMS service control information and corresponding MBMS data in CC 1, and only transmits relevant control information corresponding to MBMS in CC 1 in CC 2 and CC 3, and does not transmit corresponding MBMS data ; Here, the relevant control information includes: MCCH information and MSI. In this way, if the UE is working or camping in CC 1, the UE can normally receive the MBMS it is interested in according to the received relevant control information; similarly, if the UE is working or camping in CC 2 or CC 3, the UE aggregates into CC...

Embodiment 2

[0067] The application scenario of this embodiment is: in a multi-carrier aggregation system, there are 3 CCs, CC 1, CC 2, and CC 3, and only CC 1 is selected to transmit MBMS containing service data and service control information, CC 2 and CC 3 MBMS service data is not transmitted in CC 3; wherein, the service control information includes: MCCH information and MSI.

[0068] Using the method of the present invention, the network side transmits MBMS service control information and corresponding MBMS data in CC 1, and only transmits relevant control information corresponding to MBMS in CC 1 in CC 2 and CC 3, and does not transmit corresponding MBMS data ; Here, the relevant control information is MCCH information. In this way, if the UE is working or camping in CC 1, the UE can normally receive the MBMS it is interested in according to the received relevant control information; similarly, if the UE is working or camping in CC 2 or CC 3, the UE aggregates into CC 1 according to...

Embodiment 3

[0074] The application scenario of this embodiment is: in a multi-carrier aggregation system, there are 3 CCs, CC 1, CC 2, and CC 3, and only CC 1 is selected to transmit MBMS containing service data and service control information, CC 2 and CC 3 MBMS service data is not transmitted in CC 3; wherein, the service control information includes: MCCH information and MSI.

[0075] Using the method of the present invention, the network side transmits MBMS service control information and corresponding MBMS data in CC 1, and only transmits relevant control information corresponding to MBMS in CC 1 in CC 2 and CC 3, and does not transmit corresponding MBMS data . In this way, if the UE is working or camping in CC 1, the UE can normally receive the MBMS it is interested in according to the received relevant control information; similarly, if the UE is working or camping in CC 2 or CC 3, the UE aggregates into CC 1 according to the received relevant control information, so that it can a...

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Abstract

The invention discloses a method for transmitting multimedia broadcast multicast service (MBMS) control information in a multi-carrier aggregation system. The method includes: when sending MBMS, the network side determines component carriers as CCs carrying MBMS and CCs not carrying MBMS ; Send the MBMS service control information and service data in the CC that bears the MBMS; send the related control information of the MBMS in the CC that does not bear the MBMS. The invention also discloses a system for transmitting MBMS control information in a multi-carrier aggregation system. By adopting the method and system of the invention, user equipment (UE) working or residing in a CC that does not carry MBMS can be timely and accurately The session starts to discover the MBMS of interest in the CC carrying the MBMS.

Description

technical field [0001] The present invention relates to the technology of transmitting Multimedia Broadcast Multicast Service (MBMS) in a multi-carrier aggregation system, in particular to a method and device for transmitting MBMS control information in a multi-carrier aggregation system. Background technique [0002] With the rapid development of Internet technology and the popularization of large-screen multifunctional mobile phones, a large number of mobile data multimedia services and various high-bandwidth multimedia services have emerged, such as: video conferencing, TV broadcasting, video on demand, video advertising, online education, and interactive Games, etc., which not only meet the ever-increasing service demands of mobile users, but also bring new business growth points for mobile operators. These mobile data multimedia services require multiple users to receive the same data at the same time. Therefore, compared with general data services, they have the charac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06
CPCH04L12/189H04L5/0053H04L5/001H04W48/12H04W72/30H04B7/24H04B7/2603
Inventor 苟伟马子江王斌
Owner ZTE CORP